Malic acid is considered a beneficial substance for chronic fatigue syndrome and fibromyalgia and is important in the formation of ATP production and the conversion of fats and sugars into energy. Malic Acid is a natural derivative of apple pomace. In human physiology and nutrition, malic acid is a co-factor in the Krebs-cycle. This product is free of corn, soy, yeast, wheat, dairy or other common food or chemical allergens.